#18308: No coercion for Galois group elements in different subgroups
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Reporter: jdemeyer | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.7
Component: number fields | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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This is essentially #4105 but for Galois group elements.
{{{
sage: K.<a> = NumberField(x^6 + 40*x^3 + 1372)
sage: G = K.galois_group()
sage: L = [G.artin_symbol(Q) for Q in K.primes_above(5)]
sage: L[0] * L[1]
TypeError: unsupported operand parent(s) for '*': 'Subgroup [(),
(1,5)(2,4)(3,6)] of Galois group of Number Field in a with defining
polynomial x^6 + 40*x^3 + 1372' and 'Subgroup [(), (1,2)(3,4)(5,6)] of
Galois group of Number Field in a with defining polynomial x^6 + 40*x^3 +
1372'
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/18308>
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